.board-index {
  width: 100%;
  height: 100vh;
  background-color: #f0f0f0;
  position: relative;
  overflow: hidden;

  .left-header {
    position: fixed;
    height: 40px;
    background-color: #fff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 1rem;
    left: 1rem;
    box-shadow: 0 0 8px 0 rgba(0, 0, 0, 0.1);

    &>div {
      height: 30px;
      padding: 0 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-right: 1px solid #ccc;
      cursor: pointer;
    }

    .btn-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 15px;
      padding: 0 20px;
      cursor: pointer;

      .iconfont {
        font-size: 1.4rem;
      }
    }
  }

  .left-toolbar {
    position: fixed;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
    width: 45px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 8px 0 rgba(0, 0, 0, 0.1);
    padding: 0.2rem;

    .left-toolbar-top {
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      border-radius: 8px;
      cursor: pointer;
      z-index: 100;

      .iconfont {
        font-size: 1.7rem;
      }
    }


    .left-toolbar-line {
      width: 90%;
      border: 1px solid #ccc;
      margin: 15px 0;
    }

    .left-toolbar-other {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      gap: 15px;
      width: 100%;
      height: 100%;

      .icon-container {
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
        cursor: pointer;
      }

      .active {
        background-color: #f4f5bc;
      }

      .iconfont {
       font-size: 1.7rem;
      }
    }
  }

  .left-toolbar-anim {
    transform: translateY(-400%);
    transition: transform 0.3s ease-out;
  }
}